Mathematics · Mensuration
एक आयत की लंबाई उसकी चौड़ाई की दोगुनी है। यदि इसकी लंबाई 4 सेमी कम कर दी जाए और चौड़ाई 4 सेमी बढ़ा दी जाए, तो आयत का क्षेत्रफल 52 सेमी2 बढ़ जाता है। आयत की मूल लंबाई (सेमी में) कितनी है?
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